Quoting from MITRE: ------ Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely. ------ https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3177
There is not yet an upstream release to fix the issue in the 3.8 series that we distribute. I believe there are patches we can cherry-pick. Can somebody find them? I assume that Python is considered to be "graft-able". Can anyone confirm? The upstream bug report: https://bugs.python.org/issue42938
